Looks like notch is trying to add Rogue like qualities to Minecraft, @beige this maybe down your alley

“I’m definitely going to add hardcore mode to the game where dying will destroy the world. I’m not sure how it would work in multiplayer, though.. Perhaps you could get “banned” from the server until the world resets if you die on a server running hardcore mode.”

http://notch.tumblr.com/post/1646175743/pc-gamer-minecraft-diary-rules-you-die-you-delete